commit.c: allow parse_commit_buffer to handle arbitrary repositories

Signed-off-by: NStefan Beller <sbeller@google.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

commit.c

@@ -364,7 +364,7 @@ const void *detach_commit_buffer(struct commit *commit, unsigned long *sizep)
 	return ret;
 }
 
-int parse_commit_buffer_the_repository(struct commit *item, const void *buffer, unsigned long size, int check_graph)
+int parse_commit_buffer(struct repository *r, struct commit *item, const void *buffer, unsigned long size, int check_graph)
 {
 	const char *tail = buffer;
 	const char *bufptr = buffer;
@@ -384,11 +384,11 @@ int parse_commit_buffer_the_repository(struct commit *item, const void *buffer,
 	if (get_oid_hex(bufptr + 5, &parent) < 0)
 		return error("bad tree pointer in commit %s",
 			     oid_to_hex(&item->object.oid));
-	item->maybe_tree = lookup_tree(the_repository, &parent);
+	item->maybe_tree = lookup_tree(r, &parent);
 	bufptr += tree_entry_len + 1; /* "tree " + "hex sha1" + "\n" */
 	pptr = &item->parents;
 
-	graft = lookup_commit_graft(the_repository, &item->object.oid);
+	graft = lookup_commit_graft(r, &item->object.oid);
 	while (bufptr + parent_entry_len < tail && !memcmp(bufptr, "parent ", 7)) {
 		struct commit *new_parent;
 
@@ -403,7 +403,7 @@ int parse_commit_buffer_the_repository(struct commit *item, const void *buffer,
 		 */
 		if (graft && (graft->nr_parent < 0 || grafts_replace_parents))
 			continue;
-		new_parent = lookup_commit(the_repository, &parent);
+		new_parent = lookup_commit(r, &parent);
 		if (new_parent)
 			pptr = &commit_list_insert(new_parent, pptr)->next;
 	}
@@ -411,7 +411,7 @@ int parse_commit_buffer_the_repository(struct commit *item, const void *buffer,
 		int i;
 		struct commit *new_parent;
 		for (i = 0; i < graft->nr_parent; i++) {
-			new_parent = lookup_commit(the_repository,
+			new_parent = lookup_commit(r,
 						   &graft->parent[i]);
 			if (!new_parent)
 				continue;

commit.h

@@ -81,8 +81,7 @@ struct commit *lookup_commit_reference_by_name(const char *name);
  */
 struct commit *lookup_commit_or_die(const struct object_id *oid, const char *ref_name);
 
-#define parse_commit_buffer(r, i, b, s, g) parse_commit_buffer_##r(i, b, s, g)
-int parse_commit_buffer_the_repository(struct commit *item, const void *buffer, unsigned long size, int check_graph);
+int parse_commit_buffer(struct repository *r, struct commit *item, const void *buffer, unsigned long size, int check_graph);
 int parse_commit_gently(struct commit *item, int quiet_on_missing);
 static inline int parse_commit(struct commit *item)
 {